74633-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74633-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,3 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74633-17:
(7*7)+(6*4)+(5*6)+(4*3)+(3*3)+(2*1)+(1*7)=133
133 % 10 = 3
So 74633-17-3 is a valid CAS Registry Number.